“It was more like we’re supposed to play,” Duke coach Mike Krzyzewski said. “We were good. We can be better.”

Marvin Bagley III led Duke in scoring again with 24 points. Trevon Duval’s 18 points and Wendell Carter Jr.’s 14 points also bolstered Duke (5-0), which heads to the West Coast for three games later in the week. Alex O’Connell, a freshman guard who only played in the second half, racked up 10 points.

Bagley, a freshman forward, has topped the Blue Devils in scoring in three games this season. He made 9 of 15 shots from the field, while Duval, a freshman guard, was 9-for-12. Carter, a freshman forward, was 6-for-7.

“I took what the defense gave me and I could get to the basket,” Duval said.

Duke shot 60.9 percent from the field, dominating in the lane. The Blue Devils were credited with 64 points in the lane.

“Nights like this we’re going to go inside,” said Duke guard Grayson Allen, who shot 2-for-9 from the field. “The bigs take care of business and I don’t have to shoot the ball so much.”

The Blue Devils have won four times at home this season, each time by at least 17 points.

Duke took off across the last nine minutes before halftime for a 49-31 lead at the break. That’s the most points in an opening half for the Blue Devils this season., aided by 59.3-percent shooting from the field.